i.lex: The Legal Research System for International Law in U.S. Courts, is an online database of select U.S. court cases and materials produced by the American Society of International Law (ASIL). It is meant to help reasearchers understand how U.S. federal and state courts apply rules of international law in the cases that come before them. It is a great website, easy to understand and to use.

Hat tip to the Law Librarian Blog. You can always count on your law librarian to keep you up to date.